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arXiv · 2506.22019

Second-order prestress stability and third-order rigidity of polyhedral surfaces

Zeyuan He·Daniel Robertz
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Abstract

There has been a longstanding confusion on the proper definition of higher order rigidity and flexibility in geometric constraint systems. Recently, an energy-based formulation of higher-order rigidity was introduced by Steven Gortler, Miranda Holmes-Cerfon, and Louis Theran (2025). In this article, we apply the framework to polyhedral surfaces and introduce new criteria for testing second-order prestress stability and third-order rigidity. Furthermore, we present comprehensive case studies of polyhedral surfaces exhibiting different levels of higher-order shakiness. These results advance the understanding of higher-order rigidity and flexibility in origami-inspired structures, which are also applicable to a broad class of near-mechanisms. Clarifying the transition from higher-order flexibility to finite mechanisms opens new directions for both theoretical investigation and mechanism design.

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Zeyuan He, Daniel Robertz. 2025-06-27. Second-order prestress stability and third-order rigidity of polyhedral surfaces. https://arxiv.org/abs/2506.22019

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